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iOS & macOS Impulse (Stem) Chart
// iOS & macOS charts Examples
Please note! These examples are new to SciChart iOS v4 release! SciChart’s OpenGL ES and Metal iOS and Metal macOS Chart library ships with hundred of Objective-C and Swift iOS&macOS Chart Examples which you can browse, play with and view the source-code. All of this is possible with the new and improved SciChart iOS Examples Suite and demo application for Mac, which ships as part of the SciChart SDK.
Generates an iOS Impulse, or Stem chart in code.
The SCIFastImpulseRenderableSeries requires a SCIXyDataSeries, which contains X-Y point data.
Impulse series can be used to visualize Digital Filter responses, or scientific charts, for instance, mass spectra. You can add optional data-point markers to a impulse series using the PointMarker API. This is very performant and uses the same fast Hardware-accelerated rendering as our Scatter-Charts.
// Source Code
The Swift and Objective-C source code for the iOS and macOS Impulse (Stem) Chart example is included below (Scroll down!).
Did you know that we have the source code for all our example available for free on Github?
Clone the SciChart.iOS.Examples from Github.
Also the SciChart iOS and Scichart macOS Trials contain the full source for the examples (link below).
The SciChart Examples source code is available on Github and viewable in-app for some platforms
// SCIImpulseChartView.m
//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2019. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales: sales@scichart.com
//
// ImpulseChartView.m is part of the SCICHART® Examples. Permission is hereby granted
// to modify, create derivative works, distribute and publish any part of this source
// code whether for commercial, private or personal use.
//
// The SCICHART® examples are distributed in the hope that they will be useful, but
// without any warranty. It is provided "AS IS" without warranty of any kind, either
// expressed or implied.
//******************************************************************************
#import "ImpulseChartView.h"
#import "SCDDataManager.h"
@implementation ImpulseChartView
- (Class)associatedType { return SCIChartSurface.class; }
- (void)initExample {
id<ISCIAxis> xAxis = [SCINumericAxis new];
xAxis.growBy = [[SCIDoubleRange alloc] initWithMin:0.1 max:0.1];
id<ISCIAxis> yAxis = [SCINumericAxis new];
yAxis.growBy = [[SCIDoubleRange alloc] initWithMin:0.1 max:0.1];
SCDDoubleSeries *ds1Points = [SCDDataManager getDampedSinewaveWithAmplitude:1.0 DampingFactor:0.05 PointCount:50 Freq:5];
SCIXyDataSeries *dataSeries = [[SCIXyDataSeries alloc] initWithXType:SCIDataType_Double yType:SCIDataType_Double];
[dataSeries appendValuesX:ds1Points.xValues y:ds1Points.yValues];
SCIEllipsePointMarker *ellipsePointMarker = [SCIEllipsePointMarker new];
ellipsePointMarker.strokeStyle = SCIPenStyle.TRANSPARENT;
ellipsePointMarker.fillStyle = [[SCISolidBrushStyle alloc] initWithColorCode:0xFF47bde6];
ellipsePointMarker.size = CGSizeMake(10, 10);
SCIFastImpulseRenderableSeries *rSeries = [SCIFastImpulseRenderableSeries new];
rSeries.dataSeries = dataSeries;
rSeries.pointMarker = ellipsePointMarker;
rSeries.strokeStyle = [[SCISolidPenStyle alloc] initWithColorCode:0xFF47bde6 thickness:1.0];
[SCIUpdateSuspender usingWithSuspendable:self.surface withBlock:^{
[self.surface.xAxes add:xAxis];
[self.surface.yAxes add:yAxis];
[self.surface.renderableSeries add:rSeries];
[self.surface.chartModifiers add:[SCDExampleBaseViewController createDefaultModifiers]];
[SCIAnimations waveSeries:rSeries duration:3.0 andEasingFunction:[SCICubicEase new]];
}];
}
@end
// ImpulseChartView.swift
//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2019. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales: sales@scichart.com
//
// ImpulseChartView.swift is part of the SCICHART® Examples. Permission is hereby granted
// to modify, create derivative works, distribute and publish any part of this source
// code whether for commercial, private or personal use.
//
// The SCICHART® examples are distributed in the hope that they will be useful, but
// without any warranty. It is provided "AS IS" without warranty of any kind, either
// expressed or implied.
//******************************************************************************
class ImpulseChartView: SCDSingleChartViewController<SCIChartSurface> {
override var associatedType: AnyClass { return SCIChartSurface.self }
override func initExample() {
let xAxis = SCINumericAxis()
xAxis.growBy = SCIDoubleRange(min: 0.1, max: 0.1)
let yAxis = SCINumericAxis()
yAxis.growBy = SCIDoubleRange(min: 0.1, max: 0.1)
let ds1points = SCDDataManager.getDampedSinewave(withAmplitude: 1.0, dampingFactor: 0.05, pointCount: 50, freq: 5)
let dataSeries = SCIXyDataSeries(xType: .double, yType: .double)
dataSeries.append(x: ds1points.xValues, y: ds1points.yValues)
let ellipsePointMarker = SCIEllipsePointMarker()
ellipsePointMarker.strokeStyle = SCIPenStyle.transparent
ellipsePointMarker.fillStyle = SCISolidBrushStyle(color: 0xFF47bde6)
ellipsePointMarker.size = CGSize(width: 10, height: 10)
let rSeries = SCIFastImpulseRenderableSeries()
rSeries.dataSeries = dataSeries
rSeries.pointMarker = ellipsePointMarker
rSeries.strokeStyle = SCISolidPenStyle(color: 0xFF47bde6, thickness: 1.0)
SCIUpdateSuspender.usingWith(surface) {
self.surface.xAxes.add(xAxis)
self.surface.yAxes.add(yAxis)
self.surface.renderableSeries.add(rSeries)
self.surface.chartModifiers.add(SCDExampleBaseViewController.createDefaultModifiers())
SCIAnimations.wave(rSeries, duration: 3.0, andEasingFunction: SCICubicEase())
}
}
}